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Assimp CVE-2025-2591

MEDIUM
Divide By Zero (CWE-369)
2025-03-21 cna@vuldb.com
Information Disclosure Assimp Suse
5.3
CVSS 4.0 · NVD
View

Vulnerability Assessment

Weakness
CWE
CWE-369
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Division safety checks
Impact

CVSS score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.10%.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

pypi pyassimp no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in pypi

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Technical ContextAI · show details

This vulnerability is classified under CWE-369. A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. This vulnerability affects the function MDLImporter::InternReadFile_Quake1 of the file code/AssetLib/MDL/MDLLoader.cpp. The manipulation of the argument skinwidth/skinheight leads to divide by zero. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The patch is identified as ab66a1674fcfac87aaba4c8b900b315ebc3e7dbd. It is recommended to apply a patch to fix this issue. Affected products include: Assimp.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
SUSE 4.3 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Vulnerable system: Confidentiality
None
Vulnerable system: Integrity
None
Vulnerable system: Availability
Low
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

3
Patch released
Mar 28, 2026 - 18:32 nvd
Patch available
PoC Detected
Jul 17, 2025 - 21:53 vuln.today
Public exploit code
CVE Published
Mar 21, 2025 - 14:15 nvd
MEDIUM 5.3

DescriptionCVE.org

A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. This vulnerability affects the function MDLImporter::InternReadFile_Quake1 of the file code/AssetLib/MDL/MDLLoader.cpp. The manipulation of the argument skinwidth/skinheight leads to divide by zero. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The patch is identified as ab66a1674fcfac87aaba4c8b900b315ebc3e7dbd. It is recommended to apply a patch to fix this issue.

Executive ViewAI

Why It Matters

Organizations using A vulnerability classified as problematic should be aware of moderate risk from CVE-2025-2591 rated CVSS 5.3. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. A patch is available and should be applied during regular vulnerability management.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score
0.1%
Top 72% exploitable
Exploit
POC
Public exploit code exists
Data Quality
5 sources
Confidence: Medium
NVD CVE.org EPSS Vendor GitHub VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Low

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:assimp:assimp:5.4.3:*:*:*:*:*:*:*

More in Assimp

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CVE-2022-38528 MEDIUM POC
6.5 Sep 06

Open Asset Import Library (assimp) commit 3c253ca was discovered to contain a segmentation violation via the component A
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6.2 Nov 21

A heap-buffer-overflow vulnerability was discovered in the SkipSpacesAndLineEnd function in Assimp v5.4.3. Rated medium

CVE-2024-48426 MEDIUM POC
6.2 Oct 24

A segmentation fault (SEGV) was detected in the SortByPTypeProcess::Execute function in the Assimp library during fuzz t
CVE-2024-48425 MEDIUM POC
5.5 Oct 24

A segmentation fault (SEGV) was detected in the Assimp::SplitLargeMeshesProcess_Triangle::UpdateNode function within the
CVE-2024-48424 MEDIUM POC
5.5 Oct 24

A heap-buffer-overflow vulnerability has been identified in the OpenDDLParser::parseStructure function within the Assimp
CVE-2025-3016 MEDIUM POC
5.3 Mar 31

A vulnerability classified as problematic was found in Open Asset Import Library Assimp 5.4.3. Rated medium severity (CV
CVE-2025-2752 MEDIUM POC
5.3 Mar 25

A vulnerability was found in Open Asset Import Library Assimp 5.4.3 and classified as problematic.h of the component CSM
CVE-2025-3015 MEDIUM POC
5.3 Mar 31

A vulnerability classified as critical has been found in Open Asset Import Library Assimp 5.4.3. Rated medium severity (
CVE-2025-2592 MEDIUM POC
5.3 Mar 21

A vulnerability, which was classified as critical, has been found in Open Asset Import Library Assimp 5.4.3.cpp. Rated m
CVE-2025-2757 MEDIUM POC
5.3 Mar 25

A vulnerability classified as critical was found in Open Asset Import Library Assimp 5.4.3. Rated medium severity (CVSS

CVE-2025-2756 MEDIUM POC
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A vulnerability classified as critical has been found in Open Asset Import Library Assimp 5.4.3. Rated medium severity (

Same weakness CWE-369 – Divide By Zero

View all
CVE-2017-11720 CRITICAL POC
9.8
CVE-2012-0207 HIGH POC
7.5
CVE-2017-7598 HIGH POC
7.8
CVE-2016-3623 HIGH POC
7.5
CVE-2023-3896 HIGH POC
7.8
CVE-2023-1127 HIGH POC
7.8
CVE-2023-0512 HIGH POC
7.8
CVE-2021-29600 HIGH POC
7.8

Same technique Information Disclosure

View all
CVE-2019-2725 CRITICAL POC
9.8
CVE-2021-34523 CRITICAL POC
9.0
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2025-68613 HIGH POC
8.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5

Vendor StatusVendor

SUSE

Severity: Medium
Product Status
SUSE Package Hub 15 SP6 Fixed
openSUSE Leap 15.6 Fixed
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise Desktop 15 SP7 Fixed

References

Advisories & patches
PATCH https://github.com/assimp/assimp/pull/6047 PATCH https://github.com/assimp/assimp/pull/6047/commits/ab66a1674fcfac87aaba4c8b900b315ebc3e7dbd ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:0113/ ADVISORY https://www.suse.com/support/update/SUSE-SU-2025:14950/ REF https://vuldb.com/?ctiid.300574 REF https://vuldb.com/?id.300574 REF https://vuldb.com/?submit.517781

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